Introduction
A protocol is a practical formula for changing how you feel or perform. The best ones take little time, cost little or nothing, and work with mechanisms already built into your brain and body.
This is not “biohacking.” A hack forces a shortcut into a job it wasn’t designed to do; a protocol works with your physiology as intended. Knowing a little of that physiology lets you adapt a tool without losing the part that makes it effective. The goal isn’t to turn health into a full-time job. It’s to rescue time: more useful hours in the day, better hours of sleep at night, and more years to use them.
Start with behavior. Drugs and supplements can help, but no pill replaces sleep, exercise, stress control, or the behaviors that direct the brain to change. Use the simplest effective tool first, and involve a clinician when a medical condition, medication, or supplement is involved.
Chapter 1 — Protocols for Sleep
Sleep repairs the body, steadies emotion, strengthens memory, and restores our ability to think. The way to improve it isn’t to obsess over hours in bed. It’s to give the brain clear signals about when the day begins and ends. Your master clock reads those signals from light hitting your eyes, then coordinates temperature, cortisol, melatonin, and alertness.
1. Get outside soon after waking. Within thirty to sixty minutes, let daylight reach your eyes: five to ten minutes on a clear morning, fifteen to twenty under clouds, thirty when heavily overcast. Skip sunglasses and go outside, since windows filter too much, and use a 10,000-lux lamp before sunrise. This starts the timer for sleep that night and lifts your morning cortisol.
2. See late-afternoon light. Spend ten to fifteen minutes outside before sunset. It helps your clock track the season and makes your eyes less sensitive to artificial light later — partial protection, not a license to light the house up after dark.
3. Make evenings dim. After sundown, lower the overhead lights; in the final hour use only what you need to move safely, and prefer warm amber or red. If you wake at night, don’t check the clock or flip on bright lights. Your eyes get far more sensitive after dark, so a dose that barely registers in the morning can delay your clock.
4. Find a schedule you can keep. Pick sleep and wake times that give you six to eight hours and leave you refreshed, then hold them within about thirty minutes most nights. Strive, don’t strain. And don’t panic when you feel alert one to three hours before bed — that wake maintenance zone is normal and passes.
5. Cool down to fall asleep. Keep the bedroom around 65–68°F. Sleep begins as core temperature falls. A hot shower seems backward, but warming the skin brings blood to the surface, helping the body release heat afterward. Leave your hands and feet out of the covers for the same reason.
6. Warm up before waking. Program the room to warm by one to three degrees in the final hours, which supports late-night REM sleep.
7. Nap for the job at hand. Fifteen to twenty minutes for alertness. For real sleep loss, longer helps, but cap it at ninety minutes and nap early enough that bedtime still works.
8. Use non-sleep deep rest. Ten to thirty minutes of guided NSDR after a poor night, during an afternoon dip, or when you can’t fall asleep. It restores vigor without a nap’s grogginess.
9. Treat supplements as the second line. Fix light, timing, temperature, caffeine, and stress first, then talk to a physician and test one compound at a time. The author’s starting options, thirty minutes before bed: magnesium L-threonate or bisglycinate (145–250 mg), apigenin (50 mg), theanine (100–200 mg). This is a summary of his protocol, not medical advice.
10. Be cautious with prescription sleep drugs. If behavior doesn’t fix it, talk with a clinician rather than escalating alone. Persistent trouble can signal an underlying condition, and cognitive behavioral therapy can be durable.
11. Move caffeine earlier. Stop eight to ten hours before bed, twelve if you’re sensitive, since falling asleep after coffee doesn’t prove the sleep is undisturbed. If you crash in the afternoon, try delaying your first caffeine thirty to ninety minutes after waking.
12. Keep alcohol away from sleep. Sedation is not sleep. Alcohol fragments deep sleep and REM, so eight hours in bed can still leave you poorly restored. Finish at least eight hours before sleep.
13. Don’t use cannabis for sleep. It may help you drift off, but it suppresses REM. Feeling sedated isn’t the same as being restored.
14. Keep screens out of the final hour. Devices out of the bedroom. It isn’t only blue light: a bright screen says daytime, and a gripping message says stay alert.
15. Shift your clock before you fly. Going east, wake thirty to forty-five minutes earlier for two days beforehand, moving light, caffeine, and exercise earlier with it; going west, shift it all later. The strongest lever is light timed around your temperature minimum, about two hours before your normal wake time: light after that point shifts your clock earlier, while light before it shifts it later. For the first days after landing, calculate that point from the schedule your body still thinks it is on — your home clock — then adjust as you adapt.
Chapter 2 — Protocols for Exercise
Exercise is one of the strongest forms of medicine we have, and the mistake is treating the workout itself as the result. The calories burned aren’t the prize; the adaptation is. The workout is the request, and recovery is when the body answers. It reaches the brain too: exercise raises brain-derived neurotrophic factor, opening a window for learning. The governing rule: send a clear stimulus, then recover long enough to adapt.
1. Make walking the foundation. At least 7,000 steps a day, toward 10,000 when your schedule allows. Walk five to ten minutes after meals, since muscle contraction helps clear glucose and those steps do more than the same walk at another time. For every thirty minutes sitting, move for five.
2. Build strength three times a week. Legs once; chest, back, and core once; shoulders and arms once. Sessions near sixty minutes after a warm-up. Per muscle group, four to nine demanding work sets across two or three exercises, including at least one compound movement. Full range of motion, strict form, two to five minutes rest, and write down what you did so the next session has a target. The progression is simple: a little more weight, or one more clean rep. Strength is built between sessions, so take a full week off every twelve to sixteen weeks.
3. Train long, medium, and short cardio. Once a week each. Long and steady: forty-five to seventy-five minutes at roughly 60–70 percent of maximum heart rate, where you can hold a conversation but only just. Moderately hard: twenty-five to thirty minutes at 75–85 percent. Short and intense: six to seventeen total minutes near your maximum sustainable intensity, placed several days after heavy leg training. Heart-rate formulas are estimates, so get guidance if you’re new or have a medical condition.
4. Keep the joints moving. Ten minutes of mobility, two to four times a week: a deep sumo squat with a torso twist, knees-behind-glutes, a reverse tabletop, and the Founder pose. Move slowly inside a range you control.
The seven-day template. Put together, the week looks like this: long steady cardio, legs, rest, chest and back and core, moderate cardio, short intense cardio, shoulders and arms. Shift the days to fit your life while keeping the logic: train the whole body and several energy systems, separate hard leg work from the hardest cardio, and protect recovery.
Chapter 3 — Protocols for Stress Control
Stress is nature’s attempt to build one answer to everything urgent, which is why the response looks the same whether the stressor is a deadline or a toddler running toward traffic. The design is sound; the calibration is usually wrong.
You can’t decide to slow your heart, but breathing is the one part of the autonomic system you can take over at will: inhales raise arousal, exhales lower it. That’s the lever, and it’s why “just relax” fails — you can’t out-think adrenaline. Resilience is bringing arousal down fast in real time, and raising the point where small things set you off at all.
1. Use one to three physiological sighs. Inhale deeply through your nose, sharply sip in a second inhale to top off your lungs, then exhale slowly and fully through your mouth. Often one does it. The double inhale reinflates the tiny air sacs that stick shut, and the long exhale slows your heart. Use it before a hard conversation or right before you say something you’d regret. Five minutes of the same pattern daily also buffers you against stress later, beating box breathing and meditation in one trial.
2. Use deliberate cold to raise your stress threshold. Uncomfortably cold water three to seven times a week, one to three minutes; a cold shower counts, and 40–50°F works for most people. It should make you resist getting in, but if it burns it’s too cold. Instead of watching a clock, count “walls” — each moment you want out and stay anyway — picking two to eight beforehand, because real stress arrives in waves at unpredictable intervals. Observing your own mind mid-stress is the rare skill, and cold is a safe place to practice it. Afterward dopamine stays elevated for hours, leaving you alert but calm. Two rules protect the benefit: do the cold before resistance training or at least six hours after, since cold in that window blunts strength gains, and never combine it with deliberate hyperventilation, which has killed people.
3. Do non-sleep deep rest. Ten to thirty minutes of guided NSDR, ideally daily, especially during long stretches of pressure. You shift attention from thinking and planning to plain sensation, moving from toes to fingers to sounds in the room. It drops cortisol, restores energy, and works the first time.
4. Do a five-minute meditation right after waking. Stay in bed, set a timer, sit still, follow your breath, and bring your mind back when it wanders. Here’s the part nobody mentions: this may make you feel more anxious at first, and one lab measured exactly that. That’s the point — sitting still while your mind begs to start the day teaches you to watch arousal instead of acting on it, and over time you sense stress coming before it lands.
5. Build a strong morning cortisol peak and a quiet night. Cortisol isn’t merely a stress hormone; one of its jobs is making sure you have energy for the day, high in the morning and low at night. Chronic stress often flattens that healthy curve. Stack three or four early signals: ten minutes of bright light, 16 to 32 ounces of water, 100 to 400 mg of caffeine, morning exercise, or one to three minutes of cold. Then defend the other end: dim the lights, stop caffeine eight to ten hours before bed, and stay out of email in the final hour.
6. Treat supplements as backup. No compound outruns a stretch of bad sleep. For a genuinely hard season, the options discussed here are ashwagandha (200–300 mg, afternoon or evening only), L-theanine (100–200 mg), phosphatidylserine (100–200 mg before bed), and Rhodiola rosea (100–240 mg). Add one at a time, keep ashwagandha at 600 mg a day or less with weeks off, and talk to a physician first.
Chapter 4 — Protocols for Nutrition
Nutrition advice contradicts itself constantly, and much of the noise comes from one trick: demonize a single food and you’ve got a diet trend. Underneath it, the experts agree on more than they admit. Over time, energy intake and expenditure determine whether weight rises or falls, heavily processed food makes healthy eating harder, and body composition tells us more than scale weight alone.
The approach here is the Clean Omnivore Diet: high-ratio protein at the center of the plate, vegetables and some fruit, healthy fats, and enough clean starch to fuel your training. What it leaves out matters as much — packaged food, refined sugar, and the starch-fat-sugar combinations that make overeating automatic.
One idea does most of the work. Nine amino acids can’t be made by your body, and foods carrying all nine are complete proteins. The question is how many calories you must eat to get them — the complete-protein-to-calorie, or CP, ratio. At 150 calories, chicken gives about 28 grams of complete protein, tofu 15, and beans with rice about 6. Satiety is tied to those amino acids, which is why a high ratio keeps you full and a low one can leave you hungry an hour later.
1. Make 90 percent or more of your food unprocessed. Cook with single ingredients and season freely. Skip ready-to-eat meals and most bottled sauces, which hide added sugar, and buy dairy plain. Cells in your gut detect sugars and fats and trigger dopamine, driving you to eat more of whatever you just ate — which is why sugar is in frozen pizza and chips. The wiring runs both ways: cut the processed food and within days real food tastes better.
2. Stay hydrated. Drink 18 to 24 ounces on waking, before coffee, and about 80 ounces across the first ten hours, since your kidneys filter best early. For exercise, use the Galpin Equation: body weight in pounds divided by 30 is the ounces to drink every 15 to 20 minutes you train, so 5 ounces at 150 pounds, plus electrolytes if you sweat heavily. Losing 2 percent of body mass to dehydration dents mood, alertness, and memory — and you can be dehydrated without thirst.
3. Put high-ratio protein at every full meal. Thirty to 50 grams per meal, about 1 gram per pound of body weight a day — one large chicken breast, a 6- to 8-ounce piece of fish, or a 5- to 7-ounce steak, roughly a third of the plate. Poultry, lean red meat, fish, and shellfish lead, along with plain Greek yogurt, cottage cheese, and whey. Nuts, nut butters, and most cheeses are fats, not proteins; grains and legumes are carbohydrates. Careful vegans do fine — this is just an argument against calling peanut butter on toast a protein meal.
4. Get your carbohydrates from fibrous vegetables and some fruit. Men should aim for at least 35 grams of fiber a day and women 25; about 95 percent of Americans fall short. Insoluble fiber builds stool, soluble fiber carries out waste, and prebiotic fiber feeds your gut bacteria, so you want all three. Fiber also slows glucose into the blood and fills you up cheaply. Keep fruit to about three servings a day unless you’re very lean.
Clean starches earn their place too — rice, oatmeal, potatoes, beans, lentils, sourdough, and rye — especially after a hard session, since long cardio and heavy lifting drain glycogen. Keep them to a third or less of your calories. What to cut is the processed stuff: 800 calories of chips may not fill you, while a pound of steak contains roughly the same calories and most people would stop well before finishing it.
5. Eat healthy fats with most meals. Make most of your fat unsaturated: olives, avocados, olive oil, and avocado oil when you need a higher smoke point. Keep total fat around 30 to 35 percent of calories and saturated fat at 10 percent or less, which mostly takes care of itself if you choose lean proteins. Fat is not body fat, and the 1990s low-fat era proved what happens when you swap it for ultra-processed carbohydrates. On seed oils he’s practical: cook with olive or avocado oil and skip the argument.
6. Eat low-sugar fermented foods. Two to four servings a day of sauerkraut, kimchi, refrigerated pickles in brine, kefir, plain yogurt, miso, or natto. Shelf-stable versions haven’t been fermented and don’t count. Diversity is the best marker of a healthy gut microbiome, and in a Stanford study fermented foods raised it more than a high-fiber diet did, while inflammation markers dropped.
7. Eat fatty ocean fish, or supplement omega-3s. Salmon with the skin, sardines, mackerel, or herring once or twice a week, plus 1,000 mg of EPA a day from fish oil, or algae oil if you’re vegan. Your body can’t make omega-3s, and they’re tied to heart health, memory, and mood.
Finally, meal timing matters less than many diets claim. Intermittent fasting works mainly because it helps people cut calories, not because the clock is magic. One timing rule does hold up: leave two to three hours between your last meal and bed.
Chapter 5 — Protocols for Light
Light is medicine, and sunlight is the best version of it. The author calls it the lever that surprised him most: after years indoors under LED lights his hair was thinning, his afternoons were flat, and his joints ached, while he slept and ate well the whole time. Whether a dose helps or harms comes down to type, intensity, and timing.
The sleep chapter explained when light helps set your body clock. This chapter goes further: different wavelengths also affect energy, hormones, skin, and even vision.
1. View bright light in the first hour after waking. Sunlight as soon as you can, or a 10,000-lux lamp if the sun isn’t up: ten minutes clear, twenty partly cloudy, thirty overcast, with no sunglasses and no brimmed hat, since the cells you’re stimulating look up and forward. Here’s what the sleep chapter didn’t cover: your master clock can drive a big jump in cortisol, but only in the first sixty minutes after you wake — and it isn’t a clock time, so wake at noon and your window starts at noon. Bright light there can lift the morning peak by 50 percent and keeps cortisol low at night.
2. See sunlight again in the late afternoon or early evening. Five to thirty minutes facing the setting sun. Don’t substitute a bright lamp: low-angle light is poor in short wavelengths, which is why sunsets look orange, and that shift tells your brain night is coming. Bright white LEDs suppress melatonin in under thirty seconds, and evening sunlight gives partial protection.
3. Avoid bright light in the hour before bed. Use only enough to move safely, from desk and floor lamps rather than overhead fixtures, since the cells that read “daytime” look at your ceiling.
He frames a day in four phases counted from waking, not from a clock. The first hour: a lot of bright light. Six to ten hours in: outside again. Ten to fourteen hours in: start dimming. After that: keep it dark. Sleep in an extra hour and every phase shifts with you.
That last phase is where most people slip, and the cost is bigger than one groggy morning. In a study of 88,905 people wearing light sensors, the brighter the night and the darker the day, the higher the risk of death — by up to 34 percent in either direction. Don’t worry about a campfire or a full moon, though: a full moon is under 1 lux.
4. Get sunlight on your skin. Twenty to thirty minutes outdoors at least three days a week, ideally daily, wearing as little as is comfortable. Check the UV index and never get a sunburn. Sunlight on skin supports hormone production, and UVB exposure has been tied to higher testosterone and estrogen in both men and women. Sun UV tracks with better outcomes while artificial UV tracks with worse ones, and the reason is likely balance: sunlight delivers long wavelengths alongside short ones, while most LEDs deliver short alone.
5. Use long-wavelength light on your skin and eyes. Red, near-infrared, and infrared light for ten to thirty minutes, three to seven days a week, over as much of your body as you can manage. Long wavelengths pass through skin and even through ribs and skull, where an enzyme in your mitochondria absorbs that light to make more ATP. In a loose sense, you are solar powered. Studied effects include fewer wrinkles, acne lesions cut by 81 percent, and color discrimination improved by up to 20 percent in people over forty — that last one only in the morning. For the eye benefit, view a concentrated red source five to ten minutes once or twice a week, within three hours of waking. Never a laser, and look for a device emitting only wavelengths of about 600 nm and longer.
Chapter 6 — Protocols for Focus, Motivation, and Learning
Some of the most common claims about neuroplasticity are wrong. Not every experience changes your brain, there is no universal twenty-one-day timetable for forming a habit, and learning does not depend on endlessly adding new neurons. What’s true is better news: at any age you can rewire the circuits you have through a sequence you can run on purpose. Get alert. Get focused. Create urgency. Make errors through genuine attempts. Rest. Repeat. Test yourself.
Deliberate learning needs elevated arousal, not stress. The relationship follows an inverted U: too little and nothing happens, too much and nothing happens either. Aim for the top, which feels like the children’s game where someone tries to slap the back of your hands before you pull away — alert, waiting, slightly agitated. That agitation has a name here: limbic friction. It’s the signal, not the problem. And focus is not flow: in flow the challenge matches what you can already do, so nothing rewires.
1. Shift into alertness and focus. Start with the foundations, because everything else is weaker without them: sleep, NSDR when sleep fell short, stress control, water, and stable blood sugar. Then remove the most obvious source of friction. Put your phone in another room, not in a bag under your chair — a study found that a phone within reach lowered working memory and fluid intelligence even when people could still focus, because part of the brain spends energy resisting it.
Once the environment is working for you, train the skill itself. Among behavioral tools, meditation offers the best return on time: spend ten to twenty minutes holding attention on your breath. Redirecting a wandering mind is the exercise, like the last reps of a set. If you’ve failed before, start with ten focused breaths in bed. Clinical hypnosis is the underrated option — the author wishes it were called directed neuroplasticity, since it teaches you to reach states you otherwise can’t. For sound, try 40 Hz binaural beats; for music, silence wins.
You can also raise alertness through the body. Exercise, cyclic hyperventilation, and cold all increase adrenaline and norepinephrine without a drug. A brief round of intervals, ten to twenty vigorous nasal inhales with passive exhales, or thirty seconds to three minutes of cold can open a window of sharper focus. Never do the breathing near water or while driving. And breathe through your nose generally; if you snore, get sleep apnea checked.
Pharmacology adds sharper tradeoffs. Caffeine works, though for daily users much of the effect is simply a return to baseline, and 100 to 200 mg of theanine alongside it can produce a more alert-but-calm state. Alpha-GPC at 300 to 600 mg may help focus when used two to four times a week. Nicotine can sharpen attention but is highly habit forming; the protocol described here limits it to 1 to 6 mg, two to four times a week. Prescription stimulants are the heavy guns — useful for work you already know how to do, potentially worse for learning new skills, and difficult to stop. The rule underneath it all is homeostasis: whatever you take daily may soon become what you need just to feel normal.
2. Use mental contrasting to create a state of urgency. Swap “motivation” for “urgency,” because you know what urgency feels like. Then build it with WOOP, from Gabriele Oettingen’s research. Wish: name the goal specifically, as a skill rather than a feeling. Outcome: daydream about what achieving it will feel like. Obstacles: get brutally realistic about what will get in the way. Plan: write if-then statements for each. Ten minutes, written down, reread whenever your drive sags. Why not just think positive? Because visualization alone activates your reward circuits enough that you feel less need to go do the thing, and obstacles alone discourage you. It’s the contrast that produces the energy.
3. Embrace errors. If you can already do something, your nervous system has no reason to change. Aim for a difficulty where you’re wrong roughly 15 percent of the time for cognitive skills and up to 30 percent for motor skills. Don’t make mistakes on purpose, and don’t sit at 50 percent failure either, because then your brain can’t extract a strategy. In movement, your cerebellum acts like an internal coach, comparing what you intended to do with what actually happened. Skills are built by missing, adjusting, and missing better.
4. Sleep the night after a learning bout. The rewiring happens while you sleep, when your brain replays the firing sequences from the day, errors included. REM sleep on the first night matters most.
5. Take micro rests inside the session. For a motor skill, pause five to thirty seconds between repetitions. During cognitive work, stop for five to ten minutes. In either case, do genuinely nothing — no phone. Your brain replays the pattern at roughly twenty times speed, giving it more chances to strengthen what you just practiced.
6. Rehearse and test yourself. Spend one to five minutes after a session reviewing what you do and don’t remember. All learning is anti-forgetting: new skills fade in days to weeks unless you lock them in. Reading a passage once and reflecting on it beats rereading it, so testing is protection against forgetting, not just evaluation.
Chapter 7 — Protocols for Personal Growth
The rest of this book works on biology. This chapter works on thinking, because none of it counts for much if you don’t enjoy your own company or the company of the people around you. As neuroscientist Jennifer Groh puts it, thinking is running simulations with the sensory and motor equipment of your brain, and whatever you focus on grows richer and crowds out the rest. So the question isn’t how to stop thinking. It’s which thoughts you plant.
1. Replace mind wandering with present-tethered awareness. Check in through the day: are my thoughts on what I’m doing, or somewhere else? When they’ve drifted, pull them back with questions only the present can answer. How warm is this room? What does it smell like?
In a study of roughly 250,000 responses, Killingsworth and Gilbert found our minds are elsewhere about half of our waking lives, and that people were happier when their attention was on what they were doing — even when it was dull. Mind wandering mattered more to mood than the activity itself. That isn’t an argument against deliberate daydreaming, which can help creativity during a walk or a shower. The problem is uncontrolled drifting when you want or need to be present.
Your brain also has a default mode network that runs when you’re doing nothing, and it’s overactive in people who ruminate and people who are depressed. You can’t will it off; you switch it off by focusing on something outside yourself. When you’re stuck in a loop, try Andy Stumpf’s exercise: list everything that worries you on the left of a page, and on the right only what you can control today. Five minutes hands back a sense of agency.
2. Apply James Hollis’s daily practice: shut up, suit up, show up. The phrase is sharper than the practice. Its point is simple: never expect your best self to show up by default.
Shut up means interrupt the habit of complaining and practice gratitude instead — not with a rushed list, but by spending a minute or five finding something you would notice only if you looked for it. Gratitude tracks with more optimism, fewer minor illnesses, better sleep, and, in a study of 49,275 nurses, lower mortality. Some of the strongest effects come not from listing your own blessings but from hearing a detailed story of one person’s gratitude toward another.
Suit up is not about getting dressed. It’s about task switching. The longer you spend on one task, the deeper the neural trench, and moving to the next can cost 15 to 40 percent of your speed or accuracy. Athletes and artists know this, which is why they use rituals; champion bodybuilder Dorian Yates ironed his clothes before every workout. Make your own transition ritual physical, brief, and the same every time. And stop filling every gap with your phone.
Show up means hold yourself accountable in the roles you’ve chosen. Telling yourself you’re enough won’t make you believe it; doing your roles well will, and that lifts you into gratitude on its own.
Discipline alone can become another trap, so the practice has a balancing half: step out of stimulus-response mode every day. Do something unconnected to any ambition or role, alone — draw, read, garden, or stare at the sky. Ten minutes counts. This is how you hear your own voice beneath the borrowed opinions you’ve absorbed from everyone else. People who only optimize their outward roles end up unfulfilled, while people who only look inward never act.
3. Resolve old pain with expressive writing. Write for fifteen to twenty minutes about a difficult experience that shaped your life, once a day for four days, then stop. Write what happened, what you felt then, what you feel now, and what it still costs you. No one will read it. James Pennebaker’s studies found worse mood immediately afterward, then fewer doctor visits over the next six months. Four days gives depth without tipping into rumination. This isn’t therapy, so if you’re carrying trauma, get real help.
4. Reframe grief as longing, not sadness. Brain imaging by Mary-Frances O’Connor found that grief activates motivation and craving circuits. Your brain built maps that predicted a voice at the door at six o’clock, and those maps remain even when the person is gone. Grief is the mind still reaching for someone it expects to find. The work is remapping, and that requires contact rather than avoidance. Spend ten to thirty minutes a day letting yourself feel the attachment fully, and use rituals if they help: a candle, a photograph, a letter, or a visit. Avoid what-if thinking above all; as a psychologist friend told the author, “if only” are the two most destructive words we can think. The end point isn’t forgetting. It is reaching the day when the person’s memory can be a positive presence within the life you are living now.
Before You Turn the Last Page
Don’t try to adopt all of this at once. Pick the area where a change would make the biggest difference, get the basic behaviors in place, and keep what helps.
The closing instruction is to become a systematic observer of yourself. There are hardwired parts of human biology, and that’s why these protocols work at all. But your circumstances and responses are yours, so record what you do and change one thing at a time. The point is the one the book started with: more good hours, more good years, and more of yourself available for the people and work that matter to you.